Abstract: The system comprises a valve unit connected to a filtering unit for the selective delivery of cold, hot and mixed sanitary water, respectively either refrigerated or boiling purified water with optional carbonation. The valve unit comprises a base body for housing a first mixer tap, of the cartridge type, which is connected to a first delivery duct of the sanitary water, as well as a second control tap for the purified water, connected to a second delivery duct internal to the previous one. The outlet or each outlet of the purified water of the filtering unit is connected to an inlet of the second control tap, whereas the inlet of the cold water of the filtering unit is directly connected to the inlet of the cold water of the first mixer tap, by means of a branched channel that is provided inside the base body of the valve unit.

Abstract: A multiple connector for piping comprises a body provided with: a first connection and passage portion suitable for coupling along a first axis with a first duct for the passage of a fluid, a second connection and passage portion suitable for coupling along a second axis with a second duct for the passage of said fluid, and a third connection and passage portion suitable for coupling along a third axis with a third duct for the passage of said fluid. The first, second and third connection and passage portions are mutually arranged so that the first axis, the second axis and the third axis are mutually parallel.

Abstract: The system comprises a valve unit connected to a filtering unit for the selective delivery of cold, hot and mixed sanitary water, respectively either refrigerated or boiling purified water with optional carbonation. The valve unit comprises a base body for housing a first mixer tap, of the cartridge type, which is connected to a first delivery duct of the sanitary water, as well as a second control tap for the purified water, connected to a second delivery duct internal to the previous one. The outlet or each outlet of the purified water of the filtering unit is connected to an inlet of the second control tap, whereas the inlet of the cold water of the filtering unit is directly connected to the inlet of the cold water of the first mixer tap, by means of a branched channel that is provided inside the base body of the valve unit.